Emmanuel Silva

Dr. Emmanuel Silva


Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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Journal Article
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Hossein HassaniHossein Hassani
Hossein Hassani
ESEmmanuel Silva
Emmanuel Silva
ChatGPT, a conversational AI interface that utilizes natural language processing and machine learning algorithms, is taking the world by storm and is the buzzword across many sectors today. Given the likely impact of this model on data science, through this perspective article, we seek to provide an overview of the potential opportunities and challenges associated with using ChatGPT in data science, provide readers with a snapshot of its advantages, and stimulate interest in its use for data science projects. The paper discusses how ChatGPT can assist data scientists in automating various aspects of their workflow, including data cleaning and preprocessing, model training, and result interpretation. It also highlights how ChatGPT has the potential to provide new insights and improve decision-making processes by analyzing unstructured data. We then examine the advantages of ChatGPT’s architecture, including its ability to be fine-tuned for a wide range of language-related tasks and generate synthetic data. Limitations and issues are also addressed, particularly around concerns about bias and plagiarism when using ChatGPT. Overall, the paper concludes that the benefits outweigh the costs and ChatGPT has the potential to greatly enhance the productivity and accuracy of data science workflows and is likely to become an increasingly important tool for intelligence augmentation in the field of data science. ChatGPT can assist with a wide range of natural language processing tasks in data science, including language translation, sentiment analysis, and text classification. However, while ChatGPT can save time and resources compared to training a model from scratch, and can be fine-tuned for specific use cases, it may not perform well on certain tasks if it has not been specifically trained for them. Additionally, the output of ChatGPT may be difficult to interpret, which could pose challenges for decision-making in data science applications.

12 April 2020 in AI
Verified
Journal Article
Open access
PDF file
Hossein HassaniHossein Hassani
Hossein Hassani
ESEmmanuel Silva
Emmanuel Silva
SUStephan Unger
Stephan Unger
MTMaedeh TajMazinani
Maedeh TajMazinani
Stephen MacFeelyStephen MacFeely
Stephen MacFeely
Artificial intelligence (AI) is a rapidly growing technological phenomenon that all industries wish to exploit to benefit from efficiency gains and cost reductions. At the macrolevel, AI appears to be capable of replacing humans by undertaking intelligent tasks that were once limited to the human mind. However, another school of thought suggests that instead of being a replacement for the human mind, AI can be used for intelligence augmentation (IA). Accordingly, our research seeks to address these different views, their implications, and potential risks in an age of increased artificial awareness. We show that the ultimate goal of humankind is to achieve IA through the exploitation of AI. Moreover, we articulate the urgent need for ethical frameworks that define how AI should be used to trigger the next level of IA.

1 May 2021 in Journal of Retailing and Consumer Services
Verified
Journal Article
Closed access
ESEmmanuel Silva
Emmanuel Silva
FBFrancesca Bonetti
Francesca Bonetti

4 August 2015 in Econometrics
Verified
Journal Article
Open access
PDF file
Hossein HassaniHossein Hassani
Hossein Hassani
ESEmmanuel Silva
Emmanuel Silva
This paper introduces a complement statistical test for distinguishing between the predictive accuracy of two sets of forecasts. We propose a non-parametric test founded upon the principles of the Kolmogorov-Smirnov (KS) test, referred to as the KS Predictive Accuracy (KSPA) test. The KSPA test is able to serve two distinct purposes. Initially, the test seeks to determine whether there exists a statistically significant difference between the distribution of forecast errors, and secondly it exploits the principles of stochastic dominance to determine whether the forecasts with the lower error also reports a stochastically smaller error than forecasts from a competing model, and thereby enables distinguishing between the predictive accuracy of forecasts. We perform a simulation study for the size and power of the proposed test and report the results for different noise distributions, sample sizes and forecasting horizons. The simulation results indicate that the KSPA test is correctly sized, and robust in the face of varying forecasting horizons and sample sizes along with significant accuracy gains reported especially in the case of small sample sizes. Real world applications are also considered to illustrate the applicability of the proposed KSPA test in practice.

1 February 2015 in Tourism Management
Verified
Journal Article
Closed access
HHHossein Hassani
Hossein Hassani
AWAllan Webster
Allan Webster
ESEmmanuel Silva
Emmanuel Silva
SHSaeed Heravi
Saeed Heravi

1 March 2017 in Annals of Tourism Research
Verified
Journal Article
Open access
HHHossein Hassani
Hossein Hassani
ESEmmanuel Silva
Emmanuel Silva
Nikolaos AntonakakisNikolaos Antonakakis
Nikolaos Antonakakis
GFGeorge Filis
George Filis
RGRangan Gupta
Rangan Gupta